How to assemble a motorcycle from a bicycle. How to make a moped out of a bicycle with your own hands? Powerful chainsaw snow blower

If your farm has old bike, preferably still made in the USSR, a broken chainsaw with a “living” motor, a couple of pipes - all this rubbish can be put to good use. How? It’s very simple to make a bicycle with a chainsaw motor with your own hands. With a little effort, you can get a completely normal vehicle - in all respects it will be inferior to a car, but it will be able to take you from point A to point B over a short distance, and the gasoline consumption will be simply miserable.

Making a motorbike with your own hands

So, how to make a moped from a chainsaw with your own hands? To do this, you do not need to have a higher technical education and have a mobile workshop at hand - just the required minimum of tools, a working motor from a chainsaw of almost any brand and a bicycle frame, preferably made of metal tubes, to withstand the load from the engine.

Motor selection

There is nothing complicated about how to make a bicycle with a chainsaw motor. But you need to understand that the motor will not be suitable for a light chainsaw that is used for small jobs - its power must be at least 2 hp. or 1.5 kW. But as for the volume, the situation here is exactly the opposite - the volume should not exceed 50 cm3, in otherwise this would violate the Vienna Convention. Otherwise, such a vehicle does not require a license or registration, since this vehicle is defined as a “bicycle with an outboard engine.”

Frame equipment

A homemade moped from a chainsaw is made from a bicycle in any, even the most “dead” condition - the main thing is that there is a whole frame. The engine from a chainsaw is installed on a bicycle at the junction of the lower and seat tube - this is the optimal location method. A gasoline tank is screwed next to it, and a battery is installed above the engine, on the top pipe. You need to install the chainsaw engine so that it is fastened firmly and securely - the motor is subject to vibration and if it is loosely secured, it will fall.

If you don’t have a frame from a finished bicycle, you can easily weld it - for this you need several pipes and a welding machine. It’s even better - such a DIY chainsaw motorbike will be more durable and reliable, and a self-welded frame will allow you to position the motor as close as possible to the drive wheel.

Transmission

Simply installing a chainsaw motor on a bicycle is not enough - you need to make sure that the torque from the motor is transmitted to the wheels. For this, pulleys or a chain mechanism are used:

Pulley system. In this embodiment, the engine from a chainsaw on a bicycle will transmit torque through a belt. This system is simpler - it uses factory or homemade pulleys, one on the engine shaft, the second on the rear wheel hub, as well as a tension belt. The downside is that the belt stretches faster than the chain and is less durable, although V-belts are not inferior to chains in durability.
Chain transmission. Here you can use a rear sprocket and install a gear on the motor shaft. The transmission of torque occurs through a chain - it is more durable and resistant to stress, but requires regular maintenance. Choose for yourself how to make a bicycle with a chainsaw motor, or rather, which transmission to install on it.

Motor connection

A DIY motor scooter made from a chainsaw will not work if the engine is not connected correctly. To do this, you need to connect the battery to the engine ignition unit, as well as to the brake handle. Position the connecting cable so that it can be easily wound using the handle. The last step will be to install an exhaust pipe - you don’t have to install it, but in this case the chainsaw scooter will “delight” with the exhaust right in your face.

As you can see, there is nothing complicated about how to install a chainsaw engine on a bicycle - here you only need to put in a little effort and have the necessary minimum of spare parts and assemblies. But such a self-propelled mechanism will go a little faster than a regular bicycle. But homemade go-karts made from a chainsaw are on a completely different level. At the right approach You can organize real races, so we’ll look below at how to make a go-kart from a chainsaw with your own hands.

Homemade go-kart with a chainsaw engine

The main difference between a chainsaw go-kart and a motorbike is that it is designed for higher speeds and therefore has a more rigid four-wheel design. Therefore, the most important element It is not the motor, but the frame - it will have to be made by hand, and not just bolted together, but welded.

Body

It is recommended to use a square or round pipe for the frame - it has higher bending resistance and rigidity than a regular profile or angle. In general, you need to use several sizes: a thick pipe with a diameter of 25 mm for the chassis beams, 20 mm round timber for the frame and engine support platform, 15-20 mm pipe for the seat and other components.
Draw a drawing of your future kart, take careful measurements, and only then start making a kart with a chainsaw engine. There are tons of different templates online. Recommended parameters – from 1300 to 1800 mm long, from 760 to 1000 mm wide. The center distance is approximately ¾ of the total length of the kart.
Proceed with assembly. The structure should not be purely welded - for example, the rear axle should be movable and rotate freely, so it will have to be secured through a support bracket. Otherwise, the chainsaw kart will turn very poorly and have insufficient controllability. You don’t have to bother and buy ready-made support-bearing units - it will be easier and more reliable.
Making a seat. This is also not as simple as it seems - when passing a sharp turn, the driver can easily fall out of the seat. You can use a homemade seat made of metal or plywood, as long as it provides a tight fit.

Motor and transmission

Choosing a motor is a simple matter. The more powerful the engine, the faster the homemade chainsaw go-kart will go. Power 2-3 hp. it will be enough to accelerate to 20-30 km/h - nothing more is required from such equipment. By the way, you can make a go-kart from a chainsaw, or from a trimmer.

Before installing the motor, prepare a platform at the rear of the frame on which the motor will be installed.
Drill holes in the motor casing for fasteners that will coincide with the holes on the platform.
The motor pulley must coincide on the axis with the working pulley.
The sprocket can be used from the chainsaw itself, but you will have to sharpen it a little.
A chain is used for the transmission, but in some cases it is possible to use a pulley with a V-belt - it is cheaper, and in many respects it is not inferior to a chain.
Place a gas tank next to the engine - a plastic or metal container with a volume of 2-3 liters.

Steering and braking system

The pedal assembly is easy to make. Cut out pedal models from a metal sheet; for the feet, use an 8-10 mm metal pond. Lay the control cables so that they do not interfere with your feet and lie flat - otherwise, the cable may break.
The brake must be a foot brake. You can, of course, make it manually, but this will only complicate the design. The brake disc must be attached directly to the frame, and the brake caliper must be attached to the wheel. IN homemade version In a go-kart with a chainsaw engine, you can install brakes only on the rear drive wheels, but if you are doing a “high-speed” version, install brakes on the front axle as well.
Steering. One of the most difficult aspects is making the front wheels turn. Here you will have to use swivel brackets, to which you need to attach the steering rack. The rail itself is connected to a thick rod, on top part which the steering wheel itself is put on.

Chassis

For the chassis, you can use any wheels you have on hand. The front ones can be taken with a smaller diameter, and the rear ones with a larger diameter. But at the same time, estimate the power of the motor - if the motor is weak, then there simply won’t be enough torque. So here we will have to find out everything experimentally. As a rule, the wheel diameter does not exceed 250-400 mm.

ATV from a chainsaw

Another option for motorcycles that you can make with your own hands is a small ATV for a child or teenager. In fact, the technology used to make a homemade children's ATV from a chainsaw is practically no different from that used to create a go-kart. But there are several features:

The DIY ATV frame made from a chainsaw has a slightly different design - it is more complex, tall and massive.
For the power unit, the most powerful motor possible is used. Usually, motorcycle engines are installed for such equipment, but you can make a homemade children's ATV from a chainsaw - you only need a small modification in the form of a gearbox or intermediate shaft to increase traction and torque.
Due to the peculiarities of the seating, a chair from a moped or motorcycle is installed - it will be more comfortable than a chair with a backrest, like in a go-kart.
A children's ATV made from a chainsaw with their own hands has better cross-country ability than a go-kart, so it uses wheels of increased diameter. Their diameter should be at least 350-500 mm, preferably with a developed tread. Otherwise, it will not be an ATV, but the same go-kart.
If possible, you can install shock absorbers in the suspension - this way you will achieve a smoother and softer ride.

In all other respects, the design of the children's ATV repeats the technological solutions used to make go-karts.

Your own moped: how to make a bicycle with your own hands

Driving through rural (and not only) areas, you can often observe people riding a bicycle with a motor adapted to it. Such a homemade moped is usually assembled from an old bicycle (it could be a “Ukraine”, “Sputnik”, etc.) and gasoline engine small volume.

Most often used power unit, extracted from a friendship chainsaw - it is best suited for this design, plus finding it at a fairly low price is no problem. Of course, a more modern bicycle and motor can be used as a “base”, but the feasibility of such a solution from an economic point of view raises some doubts - for the price you pay, you can quite easily buy a good used Japanese moped without having to do anything with your own hands .

It should be noted that especially for lovers of homemade units, many companies produce motors designed for installation on bicycles - having purchased such a kit, you just need to follow the included instructions. If all points are properly followed, installation should not cause any problems. We will talk about the option described in the first paragraph - how to make a moped from an old bicycle and a chainsaw (or a lawn mower - this is not so important).

The first thing that needs to be determined is the power of the motor. Engines with a power of 1 hp. will not be able to set your vehicle in motion on their own, that is, you will have to give it some acceleration, pushing off the asphalt with your feet. 2 hp - this is much better.

Moped with a 2 hp engine. will be able not only to start on its own, but also to take you uphill, that is, you can completely forget about the pedals.

In addition to the motor, we will need a pulley (a wheel from a small children's bicycle), the belt that will be pulled over this pulley, as well as a set of tools and materials from which you will make the fasteners.

The simplest option is when the motor is mounted on top of the rear wheel. In this case, you will have to make the fastening elements yourself, since the bicycle rack may simply not withstand the weight of the motor. The optimal solution would be steel elements with a thickness of about 3-4 mm. You shouldn’t overdo it here - remember that a frame that is too powerful, firstly, will increase the load on the rear wheel, and secondly, it will increase total weight moped (accordingly, it will be more difficult for the engine to accelerate).

In this matter, try to find the “golden mean” between the strength of the structure and its weight. Connections in this design must be made by welding or, if you do not have a welding machine, with bolts. The second method is a little easier to implement, but less reliable - bolted connections tend to weaken, so there is some chance that your moped will simply fall apart one day. The engine itself can be attached to the frame using ordinary steel clamps - this is the simplest and most reliable solution.

DIY motorbike

The domestic market offers buyers a motorbike with a D-type engine. However, such devices have some disadvantages, the most significant of which is the presence of only one gear, which is why the capabilities of the device are significantly reduced. However, their cost is not too high, so as they say, you get what you pay for.

But you can make homemade units with your own hands. For this you need all the necessary materials. Until recently, motorbikes were cherished dream any boy. Yes, in childhood such homemade products aroused a lot of admiration. The difference from a regular bicycle was that such a device was equipped with a gasoline engine. And the current in the circuit could be created using a regular hair trimmer. Although the use of a trimmer is not mandatory, since it can be replaced with any other suitable device.

You can create a motorbike with your own hands, but to do this, you may need a video on a similar topic. If the rights to the required video are protected, then you can use any suitable instructions.

Instructions

So, in order to make such a device, you need:

bike;
motor;
bracket;
homemade star;
exhaust pipe;
fuel tank;
brake for the rear wheel.

You can make a motorbike by following these instructions:

Take an ordinary bicycle for which you have ownership rights. For this purpose, it is not necessary to use a new device, since even an old unit is ideal.
To easily attach a welded frame, you must use a bracket prepared in advance.
You need to install a sprocket on the rear wheel, which you can make yourself.
You can buy an exhaust pipe anywhere. It is attached by welding.
Instead of a fuel tank, it is quite possible to take a bottle from a soda siphon.
An additional brake can be installed on the rear or front wheel, since the device becomes faster, and the regular brake may not work in time.
All that remains is to connect all the parts with each other. A specialist may be needed for this if you yourself do not have experience working with current.

In addition, you can decorate the resulting motorbike using various crafts from waste materials.

Although you do not need a license to drive this type of transport, do not forget to respect the rights of pedestrians and other participants traffic.

Video on the topic

What are they needed for

To begin with, why install an engine at all?

The first is, of course, speed. With a good engine, a bicycle can reach speeds of 40-50 km/h without the participation of the cyclist. This is interesting both when walking on a weekend, and on the road from and to work, when you need to get there quickly, inexpensively, and also, preferably, without sweating. Some even go to work with the help of a bicycle engine, and return home pedaling to their heart's content.
The second is saving energy. Not everyone uses a bicycle as an extreme endurance trainer. You just want to ride for fun, but sometimes this is not so easy to do when the landscape consists of drops, gullies and hills with long climbs. To compensate for the unfriendly to the bad sports training environment, very pleasant to use the engine.
The third - quite conditional - is the passion of modern riders for progress and uniqueness. The times of homemade mopeds in every yard, described at the beginning of the article, are long gone, and having a motorized bike, and even assembled with your own hands, is very, very cool.

Legal subtleties

By the way, adding a bicycle motor dramatically complicates the rider’s life from a legal point of view. Of course, even on a regular bicycle we are full participants in the road traffic and are responsible for our behavior on the road. With the acquisition of a source of work additional to muscular strength, the bicycle becomes a vehicle. Do you need a license to drive a vehicle? Yes, we do. This is a 2014 innovation.

Rights category "M" are quite accessible. At a minimum, all those who passed category “B” have them “by default.” Driving motorcycles, mopeds and scooters are rarely taught separately, although access to exams for this category is available 2 years earlier. In practice, the majority simply ignores this letter of the law and does not have any special problems. Traffic police officers rarely get involved with maneuvering purposes, only if the driver is a very young driver.

Consequences of various violations:

For driving without a license – 800 rubles. fine and prohibition by management (the practice of application is not entirely clear - either the bike is taken away, or non-existent numbers are removed).
If you are involved in an accident, you are personally liable, since compulsory motor liability insurance was clearly not issued for the bicycle.

Motor types

Only a few types of motors are suitable for such miniature and fragile equipment, so it won’t be possible to talk about them for a long time. You can hang the engine on the frame or put it on the trunk - this is not so important, the main thing is what fuel the new “heart” of the bicycle will run on.

Petrol

Until recently, a gasoline engine was the first thing you should think about when powering your bike. As already mentioned, the history of the use of gasoline engines on bicycles goes back more than half a century. Not only serial engines for bicycles were used, but also various exotic ones, for example, engines from trimmers and chainsaws.

To move the bike, there is enough minimal force, by the standards of gasoline engines. Usually it is 1-2 hp. Accordingly, engine volume starts at 50 cubic centimeters. There are single-cylinder (most Soviet models, retired engines) and two-cylinder engines. With a difference in power of 1.5-2 times, the latter are usually installed when motorization is taken seriously. Usually, of course, these are imported engines, for example, Honda.

Typically, a gasoline engine is as simple as possible, and two-stroke mechanisms are used, which are fueled with a mixture of gasoline and oil and do not require special maintenance. Comet, D-5 and D-6 and their Chinese clones F50 and F80 are two-stroke. In addition, they are easier to start and can be removable. A 4-stroke engine is a rarity on a bike; a more complex mechanism is more economical, but its “grip” is lower, and repairs, weight and cost are much more expensive.

Electric

Electric bicycles have dramatically overtaken gasoline ones in last years. Several factors came into play here:

Reduced cost of electric motors due to unification of production in China.
Inventions in the field of batteries, which have become much lighter and more spacious.
Increasing the complexity of bike designs to the point where an electric motor becomes an acceptable accessory.

An electric motor on a bicycle is easier to install and maintain, but engineers went further than just the first step of replacing a gasoline engine with an electric one. Nowadays, motor-wheels have become very popular, when an electric motor for a bicycle is installed on the wheel hub in an integral way. This increases both ease of installation (just attach the wheel and battery) and service life. The absence of an additional chain drive and switching mechanisms makes the design simpler and more reliable.

Conclusion

Equipping a bicycle with a motor is serious business. Increases several times and average speed bike, and its high maintenance requirements, not to mention the cost. Over the years, “motorization” has turned from a hobby of boys into a whole business for equipping bicycles and producing components for this.

Buying and installing an engine on a bicycle is a serious step, and, despite all the advantages, it is a complex matter, and not all bikers are interested.

Miscellaneous

Drive mechanism

Before you start converting a regular bicycle into an electric bicycle, take a look at the technical potential of your iron horse. The bicycle must have a fairly powerful frame, since it must, at a minimum, support the weight of the rider and the weight of the equipment that will be installed on it. If everything is in order with this, you can begin to remake the bicycle and install on it the engine from the washing machine, drive mechanism, control system and power supplies.

Let's start by designing and installing the drive mechanism parts. Let us note right away that in order to make a homemade electric bicycle from the engine of an old washing machine, we will need a full-fledged metalworking workshop. Well, or at least a lathe, drilling machine, welding machine, as well as an impressive set of materials and tools, including a fairly spacious room where you can conduct experiments.

The drive mechanism will consist of the following elements:

modified bicycle hub;
large pulley;
drive belt from the washing machine;
small engine pulley
motor shaft.

The most difficult thing here, perhaps, is making a large pulley. It’s almost impossible to find a standard part that fits the size, so you’ll have to make one.

From a steel sheet (2 mm), cut out a perfect circle.

Important! The thickness of the large pulley will not allow the bicycle wheel to rotate after installation, since the part will touch the frame. It is necessary to either bend the frame or modify it in some other way, depending on the design of the bicycle.

Sawmill

One of the most common homemade products is considered a sawmill. Many developers often make beams with such a tool. Holding the saw in your hands and at the same time accurately controlling the cut along the entire length is quite difficult, especially if the log is more than four meters long.

Craftsmen have come up with a very simple solution to this problem. The chainsaw is rigidly fixed on a steel or iron frame, which can move along the entire front.

You can also use the mount to fix the chainsaw on a guide, which is height-adjustable.

In such a sawmill, the log lies stable and can be sawed along its entire length without any effort, and the seams are even. And if you equip such a homemade sawmill with four lifting screws, this will also allow you to control the thickness of the future beam. Such a sawmill can easily cut boards, but in this case the waste will increase, since the chainsaw chain is thicker.

Moped

Most often for homemade moped they use an old bicycle, the frame of which can be easily remade, or they weld it themselves from scrap metal and other spare parts. Install the engine from a chainsaw. The power in this case is transmitted through the chain from the bicycle. And when turned on, it makes the sound of a chainsaw.

boat motor

It is very easy to convert a boat motor made from a chainsaw, since it only uses a motor that transmits thrust to the boat propeller. There is no need to install a transmission on a homemade motor. All that is required is to cut out the adapter that leads from the gear to the shaft. You can use a standard propeller, which is designed for motor boats.

Motor winch

A very useful invention that can be used to pull out a car if it is stuck, or lift a heavy load to the desired height. You can also move very heavy objects with minimal effort. It is advisable to make the winch with a powerful motor in order to successfully complete all tasks. Also, reliable slings or hooks are attached to the winch, to which the load is attached.

If you attach a special device to the winch, you can use it as a plow.

What can be made from a chainsaw

Homemade chainsaws belong to a very wide class of devices. These include hand-held tools with a motor drive, such as:

- Bulgarian;
- motor drill;
- cultivator;
- snow blower;
- stationary machines and devices:
  - sawmill;
  - electric generator;
  - motor pump;
- vehicles:
  - snowmobile;
  - snowmobile;
  - moped;
  - scooter;
  - karts and children's ATV;
  - outboard motor;
  - and even an aircraft - a mini-helicopter.

And these are probably not all the possible homemade chainsaws.

Rework principle

The principle of alteration is very simple and combines the entire range of home-made devices and assemblies. A chainsaw is used as a drive. The unique qualities of the chainsaw motor, capable of operating at very large angles of inclination, perhaps not upside down, allows this universal drive to be used in many designs. In the case of using a chainsaw as a drive for a home-made hand-held power tool, most of the parts of the original chainsaw are retained, and only the working part is changed .

If, on the basis of a chainsaw, you make a stationary machine or vehicle with your own hands, the alteration becomes deeper. A gearbox, variator or belt drive is added to the design, the fuel tank is replaced with a more capacious one to ensure long-term operation without refueling.

snow blower

If in the previous design you replace the shaft with plowshares or harrow spokes with an auger mechanism, add a casing, an intake device and a pipe for throwing out snow, you will get a quite decent snow blower from the cultivator. Many home craftsmen design their homemade products with replaceable attachments for different seasons. Motor from a Shtil saw with a power of 3-5 hp. It will cope quite well with cultivating the garden in spring and autumn, and with removing loose snow from a summer cottage in winter. The most important unit is the screw mechanism.

If you are not a professional designer, then it is better to download ready-made drawings from the Internet. The auger blades are made of thick rubber, for example, from a conveyor belt. The intake device is made of galvanized steel. A plastic sewer pipe is suitable for the snow disposal pipe.

Winch

A homemade winch will be an excellent help in construction and lifting loads to a height, dragging a cut tree, rescuing a car stuck in a puddle, pulling a boat out of the water. The thrust of such a homemade winch depends on the engine power and the gear ratio, and can reach one and a half tons. For For specific applications, the unit is equipped with additional components: blocks, pulleys, hooks, sling belts and anchors for attachment to the ground or to a tree. To make a winch from a chainsaw with your own hands, you will need to weld a strong frame on which to place the engine, gearbox and drum with a stopper. The frame has holes and lugs for in various ways attaching the device to the ground, a wooden or concrete foundation, or to a tree trunk. The drum can be taken from an old winch, or you can make it yourself according to the drawings.

You should follow the safety rules when carrying out lifting and rigging work:

Cables, hooks and slinging accessories must be strong and periodically tested to tensile strength.
The stopper must securely fix the drum and prevent spontaneous unwinding of the cable under load.
When lifting heavy loads, the winch must be secured to a permanent or temporary foundation, the weight of which must be five times greater than Weight Limit lifted load.
It is strictly forbidden to stand under the load and in the area of its possible scattering when falling, as well as to the side of a tensioned cable when moving objects horizontally.

Design, drawings, diagram

To create a homemade moped from a chainsaw, you usually do not need any complex diagrams or drawings. The engine is mainly mounted on the frame; some craftsmen install the engine on the rear trunk. Let's consider the first option, which most closely matches the standard moped model. From the chainsaw we use the motor and the gas tank, which are placed side by side - at the connection of the seat tube and the front down tube. The best place for the battery is on top, closer to the front of the frame.

Since a chainsaw moped is driven by transferring force from the rear wheel to the front, the design must include transmission pulleys (belt drive) or gears (chain drive). The motor shaft is connected to the front pulley, and the rear pulley is mounted on the rear wheel hub. The pulleys are connected with a strong belt and the tension force is adjusted very correctly. Similarly, all actions are performed when installing a chain drive with gears.

Then the transmission is installed and the motor is connected, which is connected to the brake lever. The engine is connected to the battery, the cable is set correctly. As a finishing touch, the craftsmen paint the new product and give it a beautiful modern design.

Old chainsaws are some kind of inexhaustible source of inspiration; their parts and components are literally disassembled for spare parts when assembling homemade products. When repairing a motorcycle, they use ignition from a chainsaw, which, according to reviews from popular designers, is much more efficient and durable than the original magneto.

Craftsmen use the engine from a chainsaw in a fantastic way to create other home-made vehicles: a scooter with a motor from a chainsaw, a motorcycle with a saw engine, all kinds of versions of motorbikes, motorbikes on three wheels with a motor, scooters from a bicycle and a chainsaw, go-karts, tricycles, absolutely unique ATVs and a great variety of simply unimaginable designs.

You can find a lot on the forums useful tips, how and what to do correctly when assembling a moped from a chainsaw and a bike. Following simple wishes and parting words from practice will help amateurs avoid annoying mistakes when constructing a moped from a chainsaw.

Since upgrading your bike will significantly increase the load on all its components, you should first make sure that the bike is in excellent condition.
After transformations, the engine from a chainsaw will turn into a homemade bicycle motor, so the initial parameters of the engine must be strictly maintained: weight - up to 6 kg, volume up to 50 cubic meters. cm.
To avoid fire hazards, carefully check the condition of the fuel tank.
The transmission of force from the bicycle motor to the wheel depends on the correct installation and tension of the belt.

Homemade walk-behind tractors from chainsaws

To make a homemade motor cultivator from a chainsaw, you need a saw engine, several pieces of pipe and...Open photo A simple homemade motor cultivator from a chainsaw in a large size. Picture upon request “Design of the frame of a motor cultivator with a saw engine,” from the section “How to make a motor cultivator from a chainsaw »
To make a walk-behind tractor with your own hands, they very often use a motor from a chainsaw (Druzhba, Ural, Taiga or any other domestic or impo... Open photo Do-it-yourself walk-behind tractor from a Ural chainsaw in a large size. Picture upon request “Making a homemade walk-behind tractor with a chainsaw engine,” from the section “Ural saw engine, frame, gearbox and two chain drives”
A simple design of a lightweight walk-behind tractor from a chainsaw with a very simple layout of the engine, a reduction gearbox and a r...Open photo A lightweight walk-behind tractor from a chainsaw Friendship with your own hands in a large size. Picture upon request “Simple layout of the working shaft and reduction gearbox of a motor-cultivator”, from the section “Design of a motor-cultivator from chainsaws Druzhba"
Using a claw clutch and an engine from a Druzhba, Ural or any other chainsaw, you can make a reliable and easy-to-control...Open photo The design of a claw clutch in a large size. Picture upon request “Instructions for making a controlled drive clutch,” from the section “How to make a claw clutch” turning on the drive"
The construction of a homemade walk-behind tractor from a Druzhba chainsaw is quite simple, because... the engine is small, compact and weighs little, then the frame for such a m...Open photo Homemade walk-behind tractor from a Friendship chainsaw in a large size. Picture on request “Making a walk-behind tractor from a saw”, from the section “How to make a walk-behind tractor from a Friendship chainsaw”
Having an engine from a saw or moped, you can make such a simple one-wheeled motor cultivator with your own hands. The main advantage of this...Open photo A single-wheeled motor-cultivator made from a saw in a large size. Picture upon request “Simple design of a lightweight walk-behind tractor with the function of cultivating land,” from the section “photo and description of the design”
The design of the frame of a homemade portable winch, which can be used as a walk-behind tractor for plowing and cultivating a vegetable garden, is quite simple and so on...Open the photo The design of the frame of a walk-behind winch in a large size. Picture on request “Homemade winch for plowing a garden using a Druzhba chainsaw”, from the section “Design and fastening the main components of the winch walk-behind tractor"

A moped, like a bicycle, is a very convenient vehicle. Moreover, it drives faster than its older brother, thanks to its built-in drive. The ability to move quickly without much effort - isn't this the dream of every cyclist? It’s quite possible to bring it to life - equip your bike with a gasoline engine or an electric motor.

An assembled moped from a bicycle is a fairly common occurrence in rural areas or regional towns. It is there that they like to put innovative ideas into practice, in particular, to make nimble and economical transport out of an ordinary old bike. Have you noticed a similar interest in yourself? Then it's time to get down to business!

Option 1: how to quickly assemble a moped with a gasoline engine

Before you start creating a new moped from a bicycle, you need:

bike;
gasoline engine and gas tank;
battery;
pulleys or gears;
transmission belt or chain;
drive cable;
fastening clamps.

Recommended power - 2 l. s., and the engine volume should not exceed 50 cubic meters. see. A weaker engine will not allow you to move the bike; you will have to pedal for a while. An engine of sufficient power can be taken from an old moped. Other options are with a chainsaw or lawn mower.

The working unit of the engine, gas tank and battery are securely fastened to the frame using mounting clamps. Convenient location:

on the top pipe there is a battery;
the junction of the lower front and seat tubes is the engine;
Next to the engine is a gasoline tank.

At the next stage, you need to make pulleys - special transmission units through which the engine force will be transmitted to the rear wheel. The source material for the pulleys can be small wheels with external barriers, the size of a CD. Prerequisites- material strength and reliable fastening.

DIY installation of pulleys on a bicycle:

The front gear wheel is attached to the motor shaft.
A second pulley is attached to the hub of the rear wheel of the bicycle.
A belt is placed on the pulleys. The tension force is approximately the same as that of a chain. The belt must hold firmly to the wheels; this determines how accurately the engine will transmit force to the wheel.

If a chain drive is used instead of a belt drive, then gears are installed on the motor and wheel instead of pulleys.

So, the transmission is ready, now let's move on to connecting the engine:

The working motor housing is connected to the battery.
Assemble the “ignition” mechanism: a regular brake lever is attached to the steering wheel, then it is connected to the engine body through a cable.
Set the tension so that the engine starts freely through the handle.

Option 2: assembling a moped with a gas engine

This is an advanced method, and the result is more reminiscent of a real moped. To make it, we need:

gasoline engine;
moped parts: wheels, shock absorbers, exhaust pipe, brakes;
proven bike frame;
tools.

Since here we are going to get a real moped, the frame must have increased strength and weight. Also, mopeds have a slightly different frame design, which may require some modifications.

Wheels from a moped are put on the frame. It will be necessary to change the fork design, since the width of the wheels will be wider than the distance between the dropouts. If possible, install shock absorbers on the fork.

Carefully overhaul the moped power unit and replace all faulty parts. The propulsion system will require a separate space; for this, a welded metal platform at the bottom of the frame would be a good option. The engine and fuel tank are secured to the site using metal fasteners. It is better to place the battery closer to the steering wheel. An exhaust pipe is connected to the bottom of the engine. The pipe must be firmly secured to the frame so that it does not dangle while driving.

Remove the pedals and chainring from the bicycle frame.
Install sprockets on the rear wheel of the moped and the engine shaft. A star on a wheel with a larger diameter.
Place the rear wheel on the frame.
Connect the stars using a chain.

Motor connection. The clutch and throttle valve are connected to the ignition lever via drive cables. The tension is selected so that the engine can immediately start and start spinning the wheel.

Brakes. If only one brake (for example, the front brake) may be sufficient for a bicycle, then it is better to play it safe and install them on both wheels. The rear one can be used as the main one, and the front one as an auxiliary one, to adjust the speed.

In general, a homemade moped based on a bicycle will look like this:

Since a vehicle equipped with an engine moves faster than a regular bicycle (this is why the modification is intended), for safety reasons it is necessary to install lighting devices on it. Personal protective equipment - helmet, knee pads and special shoes.

How to make an electric bike

If you don’t want to bother with a gasoline engine, there is another option - install an electric motor. It can be purchased or installed from another device. The first option for creating electric mopeds is preferable, since the engines already provide the necessary power.

Options for installing an electric drive on a bicycle are a wheel motor and a separate engine with a chain or belt drive.

The wheel motor differs from the usual one by the presence of a drive mechanism in the central part. It is connected to the control unit using wires. A significant advantage is the ability to make the bike front-wheel drive without making changes to the classic transmission. And if you wish, you can even install two motor wheels. Installation is quite simple, provided that the bike itself allows it. However, to moped bike with such wheels it can be considered a stretch.

An electric moped, that is, an analogue of the one discussed above, is a completely different matter. Of course, an exhaust pipe will not be needed here - this is a plus both in terms of reliability and overall weight. Assembling an engine from scratch at home will be problematic, so let’s look at how to install a ready-made shaft motor.

Progress:

Install a new sprocket and belt pulley onto the carriage axle.
A shaft with a drive pulley is attached to the seat tube.
The pulleys are connected by a belt.
The shaft is connected to a power source through wires.
Run the wires from the battery to the switch on the steering wheel.

The location of the battery is on the lower front tube of the frame or trunk. Electric motor operation diagram:

When the electric motor is turned on, the rotating roller engages the rear tire tire, pushing it.
The pulleys and front sprocket transmit torque to the transmission.
Changing gear causes a change in torque output. At the same time, the rotation speed of the roller remains constant.

DIY electric bicycle:

Additionally, you can connect a second shaft to the front wheel by connecting it to the driven pulley of the main drive.

The engine allows you to reach the optimal speed faster and maintain it longer. A bicycle-based moped is a budget option to become the owner of a faster and more powerful vehicle. Transforming a bicycle into a moped in most cases does not make irreversible changes to the design, so it is possible to return everything to its place.

A homemade moped is assembled from an old bicycle and a small gasoline engine

Most often, a power unit extracted from a friendship chainsaw is used - it is best suited for such a design, plus finding it at a fairly low price is no problem. Of course, a more modern bicycle and motor can be used as a “base”, but the feasibility of such a solution from an economic point of view raises some doubts - for the price you pay, you can quite easily buy a good used Japanese moped without having to do anything with your own hands .

Moped with a 2 hp engine. will be able not only to start on its own, but also to take you uphill, that is, you can completely forget about the pedals.

For a homemade moped, it is better to use a 2 hp engine.

In addition to the motor, we will need a pulley (a wheel from a small children's bicycle will work well), a belt that will be pulled over this pulley, as well as a set of tools and materials from which you will make fasteners.

The simplest option is when the motor is mounted on top of the rear wheel. In this case, you will have to make the fastening elements yourself, since the bicycle rack may simply not withstand the weight of the motor. The optimal solution would be steel elements with a thickness of about 3-4 mm. You shouldn’t overdo it here - remember that a too powerful frame, firstly, will increase the load on the rear wheel, and secondly, it will increase the total weight of the moped (accordingly, it will be more difficult for the engine to accelerate it).

Video tutorial: how to make a moped from a bicycle

Next, you need to install a pulley on the rear wheel. As already mentioned, a wheel from a children’s bicycle, having a diameter one and a half to two times smaller than the diameter of the wheel of your bicycle, is perfect as a pulley. You can also use a gear - in this case the belt will be replaced by a chain. In general, these two solutions are approximately equivalent; accordingly, you should choose the one for which you have the materials (or are easier to obtain).

When the motor and belt (or chain) drive are installed, the only thing left to do is move the gas handle to the handlebars of the bicycle. For this, a regular cable is used, which can be purchased at any hardware or hardware store. It is carried out along the frame by analogy with how the brake cables run (you can look at the design yourself and you will understand everything). The gas handle can be made from the brake handle - this is the easiest way. Accordingly, you will gas by pressing this knob.

As you can see, making a moped out of a bicycle at home is quite possible, and besides, there is absolutely nothing complicated in this work. The main thing is, when you finish assembly, test your moped near your house before going out on the road. This way you will definitely be sure of its reliability.

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Both the bicycle and the moped are very comfortable vehicles. The fact is that their maintenance is not expensive. However, today many are interested in how to make a moped out of a bicycle. To do this, you need to select suitable parts.

So, first you need to decide on the frame of the product. It must be strong and unbending. Therefore, it is better to give preference to the basis from mountain bike, made of aluminum. It can be foldable. However, if you are going to ride over rough terrain, then it is better to choose If you do not know how to make a moped out of a bicycle, since this procedure is not difficult. First, find a diagram in which you will install all the components on the structure. There are countless of them on the Internet.

Now pay attention to the body kit. It is best if it is at a high level. In order for such a miracle of technology to drive, it must be equipped with an engine. Moreover, the “heart” of the design can run on gasoline or electricity. The second option is simpler and easier, as it does not require a fuel tank. However, if you don’t know how to turn a bicycle into a moped that runs on gasoline, choose an engine from a garden equipment. Pay attention to the number of revolutions and weight of the device.

The engine is mounted above the front or rear wheel. Next, you need to provide space for a gas tank or electric battery. Naturally, it is installed on the front of the frame. Before turning a bicycle into a moped, go to technical stores, because they may sell a ready-made kit for installation.

Now you should proceed to installing the gearbox. The simplest option is a regular, not too rough chain that connects the wheel and the engine directly. You can, of course, install a variator that will not reduce the clutch. As for the clutch, it is better if it is automatic centrifugal. In principle, how to make a moped out of a bicycle is clear, you just need to choose the right mechanisms. For example, when choosing a motor, pay attention not only to its power, but also to the sound it will make.

The operation of such a system is quite simple: a belt or chain is attached to the sprocket, which is put on the engine pulley. When it starts working, the bike starts moving. A pedal can be used to start the engine.

A bicycle can be quite convenient transport. The fact is that they do not consume a lot of energy, are not difficult to maintain and repair, and also do not require a driver’s license. In addition, the cost of such a design can be quite low, which makes this technique popular.

The electric version of such transport is more profitable, cheaper and safer. All mechanisms are installed on special fasteners, which can be screwed to the frame or welded to it. That's all the features of making a homemade moped.